Colchicine from Japan
Colchicine contains a tropolone ring system (modified aromatic heterocycle) used for gout treatment and as an anti-inflammatory drug. It falls under HTS 2934.99.30.00 as a chemically defined aromatic heterocyclic pharmaceutical drug.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include Certificates of Analysis showing total alkaloid content and absence of related substances
• Provide REMS program documentation if importing for US distribution due to safety restrictions
• Declare exact moisture content as it affects stability during storage and transport